Peoc-Leucin 、
N4-(2-Acetamido-3,4,6-tri-O-acetyl-2-desoxy-β-D-glucopyranosyl)-asparagin-benzylester 在
2-乙氧基-1-乙氧碳酰基-1,2-二氢喹啉 作用下,
以
二氯甲烷 为溶剂,
以60%的产率得到(2-{(S)-1-[(S)-1-Benzyloxycarbonyl-2-((2R,3R,4R,5S,6R)-4,5-diacetoxy-6-acetoxymethyl-3-acetylamino-tetrahydro-pyran-2-ylcarbamoyl)-ethylcarbamoyl]-3-methyl-butylcarbamoyloxy}-ethyl)-triphenyl-phosphonium